Communications in Plant Sciences, vol 9, p. 115-123, 2019 (2019019)
Azospirillum brasilense and macronutrients in the initial establishment of brachiaria
Tauane Santos Brito*, Tatiane Eberling, Leila Alves Netto, Giovana Ritter, Renan Pan, Daniele Cristina Schons Eckhardt and Vandeir Francisco Guimarães
*Correspondence to: firstname.lastname@example.org
Abstract: Pasture production needs sustainable technologies, associating correct fertilization techniques that allow its maintenance aiming at productivity for quality animal feed production. The objective was to evaluate the initial responses of the inoculation with Azospirillum brasilense associated to macronutrients in Brachiaria brizantha cv. ‘Xaraés’. In pots filled with Oxisoil, with combinations of macronutrients as formulates (10-10-10; 20-10-10; 10-20-10; and 10-10-20) associated or not to inoculation with growth promoting bacteria A. brasilense, the experiment was conducted in a randomized blocks design, with four replicates. At 10, 20 and 30 days after emergence the plants were evaluated for number of leaves, length of the biggest leaf, aerial length, number of tillers and chlorophyll relative content. At 30 days after emergence, plants were evaluated for dry mass of roots and aerial part, root length, leaves content of nitrogen, phosphorus and potassium. The use of the formula 10-20-10, in the absence or presence of inoculation with A. brasilense, increased the leaves initial development of plants of B. brizantha cv. ‘Xaraés’. The formula 10-10-10, in the absence and presence of bacterial inoculation, resulted in plants with lower foliar development up to 30 days after emergence.
The nutritional availability influences in the initial development of seedlings of B. brizantha cv. ‘Xaraés’.
Keywords: Nitrogen, Phosphorus, Potassium, Pastures, Growth promotion. (more…)